• On newborns to 3 months, use a rectal thermometer
• On babies 3 months to 3 years, use a rectal or axillary (armpit) thermometer
• For children 4 to 5 years old, use a rectal, axillary or oral thermometer
• For children, 5 years or older, use an oral or axillary thermometer
• Mercury thermometers should not be used.
Source: American Academy of Pediatrics E-mail to a friend ![]()

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